User's Manual

6 Contents
DRAFT 2
Responding to a loneworker alarm .......................... 116
Delaying the emergency action
(conventional mode only) ......................................... 117
11 Encryption ...........................................................118
About encryption .......................................................... 119
About the proper key detect feature......................... 119
Encrypting calls ............................................................ 119
Making an encrypted call.............................................. 120
Receiving an encrypted call ......................................... 121
Changing the radio’s encryption key ............................ 121
Changing the transmit encryption key...................... 122
Changing the transmit encryption key back to
the default setting..................................................... 122
Changing the encryption keyset............................... 122
Removing encryption keys from the radio .................... 123
Deleting an encryption key....................................... 123
Deleting all encryption keys ..................................... 123
Updating encryption keys over-the-air.......................... 124
Using an encryption demonstration key ....................... 124
Activating the demo key ........................................... 124
Making an encrypted call using the demo key ......... 125
Receiving an encrypted call using the demo key ..... 125
12 Customizing radio settings ...............................126
Extending battery life on a shift .................................... 127
Turning low power transmit on or off........................ 127
Changing the volume of all audible indicators.............. 128
Changing the volume of keypress tones ...................... 128
Changing to quiet operation ......................................... 129
Changing to silent operation......................................... 129
Turning on backlighting ................................................ 130
Turning backlighting on momentarily ....................... 130
Adjusting the display contrast....................................... 131
13 Charging and caring for batteries .....................132
About the chargers ....................................................... 133
Special conditions when using IS radios ..................... 134
Before using the charger .............................................. 134
Handle the battery safely ......................................... 134
Attaching of labels.................................................... 135
Charging temperatures ............................................ 135
Leaving the battery on charge.................................. 136
Low battery warning ................................................. 137
Charging the battery..................................................... 138